400554245 has 64 divisors (see below), whose sum is σ = 617379840. Its totient is φ = 242742528.

The previous prime is 400554197. The next prime is 400554251. The reversal of 400554245 is 542455004.

It is not a de Polignac number, because 400554245 - 2¹⁴ = 400537861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1154162 + ... + 1154508.

It is an arithmetic number, because the mean of its divisors is an integer number (9646560).

Almost surely, 2^400554245 is an apocalyptic number.

It is an amenable number.

400554245 is a deficient number, since it is larger than the sum of its proper divisors (216825595).

400554245 is a wasteful number, since it uses less digits than its factorization.

400554245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 400554245 is about 20013.8513285175. The cubic root of 400554245 is about 737.1464520097.

The spelling of 400554245 in words is "four hundred million, five hundred fifty-four thousand, two hundred forty-five".